Structural Analysis
6th Edition
ISBN: 9781337630931
Author: KASSIMALI, Aslam.
Publisher: Cengage,
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Define shrinkage limit. What is the water content above and below shrinkage limit.
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- For a natural raw water containing the following water quality in the table. Check lecture 05 slides on page 52 to determine how much slaked lime is needed remove all hardness. Atomic weight or molecular Concentration weight (g/mol) 120 mg/L 100 mg/L as CaCO3 25 meg/L Ca2+ 40 Mg2+ HCO3 24 61 O A. 5 meq/L О В. 700 mg-СаСОЗ/L O C. 15 meq/L O D. No lime is needed.arrow_forwardYou are asked to design a water softening system to bring following water to a final hardness if 75.0 mg/L as CaCO3. The ion concentrations reported below are all mg/L as CaCO3. Ca2+ = 240.00; Mg2+ = 90.0; HCO3- = 268.0; and CO2= 18.0 The total lime required and initial NCH are nearly 1. 330 and 268 mg/L as CaCO3 2. 376 and 62 mg/L as CaCO3 3. 330 and 27 mg/L as CaCO3 4. 376 and 268 mg/L as CaCO3arrow_forwardA box measuring 50 cm x 50 cm x 50 cm is filled to the top with dry coarse aggregate of mass 187.5 kg. The water absorption and specific gravity of the aggregate are 0.5% and 2.5, respectively. The maximum quantity of water (in kg, round off to 2 decimal places) required to fill the box completely is brisarrow_forward
- Us Standard Sieve No. Sieve Opening (mm) Weight Retained (g) % Retained on Sieve % Passing Sieve 4 4.75 12.7 6.2 93.8 10 2 24.8 12.1 81.7 20 0.85 21.5 10.48 71.24 40 0.425 38.8 18.92 52.33 60 0.25 23.8 11.60 40.73 100 0.15 19.5 9.51 31.23 200 0.074 46.7 22.76 7.463 Minus 200 17.3 8.44 0 Total 205.1 for D10 and D60 calculate the k value utalizing Hazen's approxoimation. c=100arrow_forward5.20 Calculate the sieve analysis shown in Table P5.20, and plot on a 0.45 power gra- dation chart. What is the maximum size? What is the nominal maximum size? TABLE P5.20 Sieve Size 37.5 mm 25 mm 19 mm 9.5 mm 4.75 mm 0.60 mm 0.075 mm Pan Amount Retained, g 0 315 782 1493 677 1046 1502 45 Cumulative Amount Retained, g Cumulative Percent Percent Passing Retainedarrow_forward
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